#define ENOTSUPP 524 /* Operation is not supported */
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
#include <malloc.h>
#include <watchdog.h>
#include <linux/err.h>
{
struct nand_chip *chip = mtd->priv;
+ if (!(chip->options & NAND_BBT_SCANNED)) {
+ chip->scan_bbt(mtd);
+ chip->options |= NAND_BBT_SCANNED;
+ }
+
if (!chip->bbt)
return chip->block_bad(mtd, ofs, getchip);
void nand_wait_ready(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
- nand_wait(mtd, chip);
+ u32 timeo = (CFG_HZ * 20) / 1000;
+
+ reset_timer();
+
+ /* wait until command is processed or timeout occures */
+ while (get_timer(0) < timeo) {
+ if (chip->dev_ready)
+ if (chip->dev_ready(mtd))
+ break;
+ }
}
#endif
#else
static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
{
+ this->state = new_state;
return 0;
}
#endif
/* Calculate pages in each block */
pages_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
-
+
/* Select the NAND device */
chip->select_chip(mtd, chipnr);
if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
chip->cmdfunc = nand_command_lp;
- printk(KERN_INFO "NAND device: Manufacturer ID:"
- " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, dev_id,
- nand_manuf_ids[maf_idx].name, type->name);
+ MTDDEBUG (MTD_DEBUG_LEVEL0, "NAND device: Manufacturer ID:"
+ " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, dev_id,
+ nand_manuf_ids[maf_idx].name, type->name);
return type;
}
default:
printk(KERN_WARNING "No oob scheme defined for "
"oobsize %d\n", mtd->oobsize);
-// BUG();
+/* BUG(); */
}
}
chip->ecc.write_oob = nand_write_oob_std;
case NAND_ECC_HW_SYNDROME:
- if (!chip->ecc.calculate || !chip->ecc.correct ||
- !chip->ecc.hwctl) {
+ if ((!chip->ecc.calculate || !chip->ecc.correct ||
+ !chip->ecc.hwctl) &&
+ (!chip->ecc.read_page ||
+ chip->ecc.read_page == nand_read_page_hwecc ||
+ !chip->ecc.write_page ||
+ chip->ecc.write_page == nand_write_page_hwecc)) {
printk(KERN_WARNING "No ECC functions supplied, "
"Hardware ECC not possible\n");
BUG();
/* Check, if we should skip the bad block table scan */
if (chip->options & NAND_SKIP_BBTSCAN)
- return 0;
+ chip->options |= NAND_BBT_SCANNED;
- /* Build bad block table */
- return chip->scan_bbt(mtd);
+ return 0;
}
/* module_text_address() isn't exported, and it's mostly a pointless
BUG();
}
#endif
-
+
ret = nand_scan_ident(mtd, maxchips);
if (!ret)
ret = nand_scan_tail(mtd);
MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
MODULE_DESCRIPTION("Generic NAND flash driver code");
#endif
-
-#endif
-